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Tropospheric Ozone during the TRACE-P Mission: Comparison between TOMS Satellite Retrievals and Aircraft Lidar Data, March 2001Over the past several years, we have developed two new tropospheric ozone retrievals from the TOMS (Total Ozone Mapping Spectrometer) satellite instrument that are of sufficient resolution to follow pollution episodes. The modified-residual technique uses v. 7 TOMS total ozone and is applicable to tropical regimes in which the wave-one pattern in total ozone is observed. The TOMS-direct method ('TDOT' = TOMS Direct Ozone in the Troposphere) represents a new algorithm that uses TOMS radiances directly to extract tropospheric ozone in regions of constant stratospheric ozone. It is not geographically restricted, using meteorological regimes as the basis for classifying TOMS radiances and for selecting appropriate comparison data. TDOT is useful where tropospheric ozone displays high mixing ratios and variability characteristic of pollution. Some of these episodes were observed downwind of Asian biomass burning during the TRACE-P (Transport and Atmospheric Chemical Evolution-Pacific) field experiment in March 2001. This paper features comparisons among TDOT tropospheric ozone column depth, integrated uv-DIAL measurements made from NASA's DC-8, and ozonesonde data.
Document ID
20020073222
Document Type
Conference Paper
Authors
Frolov, A. D. (Maryland Univ. College Park, MD United States)
Thompson, A. M. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Hudson, R. D. (Maryland Univ. College Park, MD United States)
Browell, E. V. (NASA Langley Research Center Hampton, VA United States)
Oltmans, S. J. (National Oceanic and Atmospheric Administration Boulder, CO United States)
Witte, J. C. (Science Systems and Applications, Inc. Greenbelt, MD United States)
Bhartia, P. K.
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Environment Pollution
Meeting Information
2002 Spring AGU: Validation and Satellite Data(Washington, DC)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.